1000 Threads found on edaboard.com: Step Motors
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there are many components to drive step motor.
Hobby Circuits and Small Projects Problems :: 09-20-2003 04:18 :: db69 :: Replies: 7 :: Views: 4352
I´m working on an assembler program for a mid range PICmicro MCU, with wich I need to generate several signals simultanously.
At a certain step, I will need to simultaneously change (set or reset) the state of two bits from a PORT register, keeping all the others unchanged, and the two bit values might be diferent from each other.
PC Programming and Interfacing :: 09-23-2003 01:07 :: laser :: Replies: 3 :: Views: 1497
I need to control 3 DC 9v motors using a GAL... Everything is ready, and I was told I could use an optocoupler for seperating the different power sources (TTL with 5v .... and the motors with a 9.6v RC Car Battery).
I'm simulating this in Proteus, but the problem with the optocoupelrs is that when they are not on, their outpu
PLD, SPLD, GAL, CPLD, FPGA Design :: 11-01-2003 12:06 :: goosiegoo :: Replies: 1 :: Views: 1570
8000 rpm = 133.3 rps
assuming u r using a 1.8°/step motor, i.e., 200 step/rev --> u need 200 * 133.3 = 26660 step/sec. This is extremely high. I think u can not acheive this steps rate easily. Also, for very high speeds, u will have to trade off any torque for this high speed.
can u explain the application in brief?
Robotics and Automation Forum :: 11-19-2004 16:59 :: Bus Master :: Replies: 5 :: Views: 2220
I'm currently trying to build a step-up regulator from 5V DC to 12V DC.
Datasheet and application notes of MC34063 are quite good, but I don't have a clue what NPN transistor to use to increase output and R2 types/ratings are my problem...
Can you help me or provide me a link
Hobby Circuits and Small Projects Problems :: 12-06-2003 15:11 :: mip :: Replies: 1 :: Views: 10569
latest version is:
Robotics and Automation Forum :: 05-21-2004 06:22 :: HugoRatlos :: Replies: 6 :: Views: 55490
how to send a step function for a step motor from MATLAB through a data acquisition card(pci-6023e) ?
PC Programming and Interfacing :: 05-18-2004 09:04 :: mohsenzh :: Replies: 1 :: Views: 1302
If you have the motor's transfer function, use th command step
PC Programming and Interfacing :: 05-18-2004 13:49 :: dahem0n :: Replies: 1 :: Views: 877
do you have the motor already in Matlab?
because the motor must have a a transfer function that is input vs. ouput lets say T=1/(2+s^2+s^5)
then create a sinusoidal input for example. Make it step later.
signal_time=0:0.01:20; %20 seconds
Digital Signal Processing :: 07-18-2004 15:32 :: djalli :: Replies: 1 :: Views: 1289
such as pspice:
it have a auto default step time,but this default time maybe too small in implement,if it is small,implementation will occur too much CPU time,and very difficult to get simulate result,so you can adjust it by youself!
Electronic Elementary Questions :: 05-19-2004 20:36 :: alphi :: Replies: 9 :: Views: 3408
I have much experience about "PWM step-down regulator",but what "THE Syn PWM step-down regulator",How to syn?
Analog Circuit Design :: 05-28-2004 19:58 :: alphi :: Replies: 9 :: Views: 1154
you can adjust and try.
for large and complex systerm,you should use large steping time.
Software Problems, Hints and Reviews :: 06-18-2004 21:08 :: alphi :: Replies: 1 :: Views: 1081
if motor current < 500mA, try to use,for example, ULN2003 from texas insrument
Microcontrollers :: 07-20-2004 17:05 :: goshka :: Replies: 3 :: Views: 1040
Sounds like a typographical error. A 1:3 step-up transformer will convert 115V RMS into 345V RMS (or 115V P-P into 345V P-P).
Electronic Elementary Questions :: 07-28-2004 21:51 :: echo47 :: Replies: 4 :: Views: 1726
How to design step-up/step-down converter accepts 2Volt to 100Volt inputs?
I need to design step-Up/step-Down DC-DC Converts 2Volt to 100Volt input to a 12V output at up 2A. The output voltage can always maintain 12Volt. :cry:
I do not think there is choice for you but to use switch mode power supply
Electronic Elementary Questions :: 09-04-2004 02:59 :: djalli :: Replies: 8 :: Views: 5524
any1 could help me in controlling RC Servo motors with micro cotroller?
and tutorials abot it?
Microcontrollers :: 09-10-2004 19:23 :: tavakoli :: Replies: 2 :: Views: 1279
step discontinuity is automatically some shunt (parasitic) capacitance being instroduced.
You can ignore them at some level, rule of thumb I have learned is below 3GHz.
You can compesate this by impedance matching to Z0 value adding something extra (e.g. a stub etc.) to the microstrip line.
The least you can approach this by using some tool
RF, Microwave, Antennas and Optics :: 09-23-2004 11:34 :: djalli :: Replies: 3 :: Views: 850
I want to learn basics of Electrical motors (AC & DC). is there any website having simulations showing inside of motors and how these work ? where on internet, can i find good sites to learn about special types of motors (stepper, servo etc) and drives ?
thanks for reading this.
hi i think its a good site 4
Robotics and Automation Forum :: 10-21-2004 14:15 :: ranim :: Replies: 4 :: Views: 2330
Rescently When i was constructing the project of automated fishing ,
I encountered the powerful EMI from three Small toy motors (brush type , permanent magnet) , it was so powerfull that , the controller 89C51 was almost unable to work , even after connecting 0.1uf and 1000uf capacitors at all the supply lines. After using two different pow
Hobby Circuits and Small Projects Problems :: 10-26-2004 09:27 :: Shashank_parab :: Replies: 14 :: Views: 3948
I use the PIC family microcontrollers to control the low power DC motors.
In this case ,I use the Magnetic-Relay to join the microcontroller low power pulse to the DC motors electric power.Now i want to use the AC powerfull motors.
Pls guide me to use the Triac & Optocoupler & other parts to control the Power AC motors. (...)
Robotics and Automation Forum :: 11-10-2004 01:41 :: sabri :: Replies: 5 :: Views: 1999
Two types of STA..
pre layout STA --after synthesis
post layout STA ==after layout..
its not just a single step.. lots of iterations are involved to fix all problems
ASIC Design Methodologies and Tools (Digital) :: 11-16-2004 23:11 :: eda_wiz :: Replies: 17 :: Views: 2911
One problem with the feedback approach is the nonlinearity and hysteresis involved in the mechanical portion. Even very small amounts of these will cause stability problems in the control system.
In the stepper motor approach you can gear down the drive so that the increments of motion are smaller than the specification for surface roughness.
Robotics and Automation Forum :: 11-18-2004 16:19 :: flatulent :: Replies: 8 :: Views: 2867
Hi, I need circuit model for step-recovery diode. Does anyone know where I can get it?
RF, Microwave, Antennas and Optics :: 11-24-2004 13:48 :: DimaA :: Replies: 1 :: Views: 1740
Yes nicleo. In brush DC, brushless DC or AC servos current control gives you direct torque control. Altough current variation in stepper motor windings afects torque, you can't control the force exerted against the load that way. That's simply because the torque in stepper motors has a very non linear profile between torque detents.
Hobby Circuits and Small Projects Problems :: 12-14-2004 09:15 :: jorgito :: Replies: 21 :: Views: 5056
CCS produce a number of compilers for PICMicro MCU. At present, the limitations of the COD symbolic debug data format mean that the VSM debugging support for this product is limited to stepping through the machine code and watching specific memory locations. Source level stepping and variable display are not supported.
Microcontrollers :: 12-21-2004 18:11 :: hugo :: Replies: 7 :: Views: 2563
i work in a tracking system project
i need to know what kind of motor i can use ??
what is the differance in DC & stepper motors in tracking system
help me please
With a "normal" dc motor you can only control revolution (n) and the torque. With a stepper motor you can "step" exactly a given angle.
Microcontrollers :: 01-26-2005 05:04 :: eda4you :: Replies: 6 :: Views: 6697
oh...just choose options after clickig on the tran setting and there u will see max step and minstep..if u set them both equal then the step size is always same..other wise the step size used by spectre can vary from minstep to maxstep..
Analog Circuit Design :: 02-02-2005 11:14 :: v_naren :: Replies: 11 :: Views: 9127
I only have a Uln 2803 Ic ( max current :500mA)
but i want to control a stepper motor (parameter 1.8 degree/step _ 4.4V _1.15 A) which use ULN 2803
How to increase a current use Tip 120.. to control this stepper motor
Help me!!! ( schematics or ideal)
thanks in advance!!!
Robotics and Automation Forum :: 02-16-2005 00:04 :: iknow :: Replies: 1 :: Views: 1069
Start using the SEARCH button (above) and type : PIV AND stepper AND motor ..
Microcontrollers :: 03-04-2005 18:27 :: IanP :: Replies: 2 :: Views: 1326
If someone follows my posts, he will find out that I have several posts on steping up from 5V to 350V etc.
Now I have this urgent problem:
Suppose I have DC current of 5V. I want to step up to 5000V and 4mA.
Can someone give specific instractions, step-by-step ( I mean ICs, design considerations etc) how to go (...)
Hobby Circuits and Small Projects Problems :: 03-15-2005 05:43 :: dkace :: Replies: 3 :: Views: 933
anyone have any links/experience building a picosecond generator? or knows how those commercial step generators are based upon?
im trying to build one below 1 nanosecond mark, and the step is from 0 to 5V. so far i only manage around 1.2ns.
Analog Circuit Design :: 03-20-2005 21:43 :: wwfieee :: Replies: 7 :: Views: 2102
i am working on SoC Encounter which is Place & Route tool in which u can do RTL Synthesis also. so i would like to know some issues regarding the RTL Synthesis step,
Basically i will get Gate level Netlist from the PKS tool & same netlist i wiil use input to the SoC Encounter.
So i want to know what r effects of
1) design for test conf
ASIC Design Methodologies and Tools (Digital) :: 03-31-2005 00:30 :: Kulprashant :: Replies: 0 :: Views: 839
How can i start learning step 7?. If someone has the book or something...
Robotics and Automation Forum :: 04-01-2005 07:28 :: Moof :: Replies: 1 :: Views: 821
i have found some Steeper motors in a old Printer
and i want to use them in some project
can someone tell me where i can found the Datashet for the :
57SHM-46B6A 1.8Deg 5Ω
42SHM-32K8A 3.75 37Ω
There a Logo like a Triangle of 3 Arrow near the Name
Thanks in Advance
Service Manuals, Requests, Repair Tips :: 04-02-2005 15:19 :: Cortex :: Replies: 0 :: Views: 1605
any one is having the method to convert step signal to spike signal. actually what i want is a proof with help of DIFFERENTIATION
Electronic Elementary Questions :: 04-04-2005 08:26 :: electronics_kumar :: Replies: 1 :: Views: 593
You can do one of 2 things:
1. Use a gear to lower the speed of the motor and increase your torque. ( There are many ways, and cheap ones to do that )
2. Use a step motor. more complecated then the first option, but you can have the abilaty to speed things up...
Hobby Circuits and Small Projects Problems :: 04-07-2005 08:03 :: gidimiz :: Replies: 4 :: Views: 2359
you can't simulate it within microwin itself, like you can with step7 and PLCSIM.
But there a small program which can load a .awl and DB1 file and can simulate a S7_200 and even a TD200 OP panel together.
You can download it here
Robotics and Automation Forum :: 04-07-2005 17:32 :: monty_burns_007 :: Replies: 10 :: Views: 21950
I am new to PCB designing ,can you tell me the step by step procedure to make my circuit on PCBs. ?
Also please answer my follwing :-
1.Which are the software tools i can use and how ?
2. Types of PCBs and how to decide which PCB to use ?
Electronic Elementary Questions :: 04-13-2005 16:10 :: truebs :: Replies: 26 :: Views: 8557
Your problem is simple you will need to use the method of partial fractions. The first step is to factorise (s?+2ζωs +ω?). You can get three different cases:
for ζ<1: (overdamped)
This is the simplest case, in which you have 2 real roots. You can then factorise the denomenator to be of the form: (s+x)(s+y). So you have:
Mathematics and Physics :: 04-25-2005 22:44 :: abionnnn :: Replies: 1 :: Views: 1393
If you dont have any experience with HV HF transformers you better start with a step-down transformer 240Vac/24Vac, use bridge rectifier and a ≈4700? smoothing capacitor and then employ one of the switchmode step-down (buck) converters such as LM2576 or similar ( ).
Once you gain experience in switch
Analog Circuit Design :: 04-28-2005 08:50 :: IanP :: Replies: 4 :: Views: 1921
Hello everybody, here is my problem: I need to know the value of the root mean square of the current in a mosfet of an inverter for ac motors, like this
i mean, usually you can express the current with i(t)= Imax*sin(wt) and the Irms is Imax/sqrt2.
But in this case the current is like in
Analog Circuit Design :: 05-04-2005 13:53 :: yopp :: Replies: 0 :: Views: 546
how can i make microstrip antenna in the first step?
RF, Microwave, Antennas and Optics :: 05-09-2005 05:57 :: heab :: Replies: 3 :: Views: 1136
i need help!
do you know where can i buy servo motors here in the philippines?
Hobby Circuits and Small Projects Problems :: 05-11-2005 00:47 :: quinceanyos :: Replies: 5 :: Views: 2964
I got this formula that I need some explanation:
stepReps = TDR step Response
TDR = Time Domain Reflectometry
Any paper/application note and others related infor is very much appreciated.
RF, Microwave, Antennas and Optics :: 06-16-2005 20:25 :: camel_RF :: Replies: 0 :: Views: 889
The definition of a unit step function is:
u(t) = 1 for t>=0
= 0 for t<0
2u(1-t) - 3u(t-1) - 4u(t+1)
2u(1-t) = 2 for 1-t>=0 or t<=1
= 0 for 1-t<0 or t>1
3u(t-1) = 3 for t>=1
= 0 for t<1
4u(t+1) = 4 for t>=-1
= 0 for t<-1
So the functions value at t =2
Analog Circuit Design :: 06-28-2005 22:50 :: aryajur :: Replies: 7 :: Views: 3692
you can use a counter and a comparator to
construct a PWM.
I have a controller for stepper motors to microsteps of 1/32, I'm writing for knowing if through a IC divisor was possible to make it to arrive to 1/64.
Which thing I can make? what I must use? I pray to you help me.
Microcontrollers :: 06-30-2005 08:03 :: power-twq :: Replies: 2 :: Views: 734
In most recent cars, with use CAN protocol, these actuators are bipolar stepper motors. FIAT car's, like Palio, Marea and Stilo; use this type of motors in dashboard.
thanks. Do you have any links/resources about this?
I guess when using stepping motor, microstepping is needed.
Electronic Elementary Questions :: 07-24-2005 21:02 :: banh :: Replies: 7 :: Views: 1610
I want to run a alterable step hspice tran. simulation, does hspice has this function? For example, the time step is 50u in the first 2ms and then it changes
to 5ns in the last 4us. that is to say the step is 5ns instead of 50u between 2ms and 2.004ms.
Thx for your attention.
Analog Circuit Design :: 07-14-2005 08:07 :: philipwang :: Replies: 1 :: Views: 562
I,m planning to make a line follower robot, but i don,t know so much about
motors, so .. where can i start ? i need motors introduction, operation theory,
types, control methods .......and so on, could anyone help?
Robotics and Automation Forum :: 07-16-2005 01:43 :: gawad :: Replies: 1 :: Views: 962
Here is a ggod link for stepper motor and its drivers
Electronic Elementary Questions :: 07-27-2005 09:06 :: eda4you :: Replies: 3 :: Views: 906